<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }

        ul,
        li {
            list-style: none;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            vertical-align: top;
        }

        .clear::after {
            content: "";
            display: block;
            clear: both;
            height: 0;
            visibility: hidden;
            overflow: hidden;
        }

        .product-intro {
            width: 1226px;
            min-height: 500px;
            margin: 0 auto;
            margin-top: 50px;

            display: flex;
            justify-content: space-between;

            background-color: grey;
        }

        .product-intro .preview-wrap {
            width: 400px;
            background-color: pink;
            position: relative;
        }

        .product-intro .preview-wrap .preview {
            width: 400px;
            height: 400px;
            position: relative;
        }

        .product-intro .preview-wrap .preview img {
            width: 100%;
        }

        .product-intro .preview-wrap .preview .shadow {
            width: 200px;
            height: 200px;
            position: absolute;
            left: 0;
            top: 0;
            background-color: rgba(0, 0, 0, 0.3);
        }

        .product-intro .preview-wrap .preview-scale {
            width: 500px;
            height: 500px;
            position: absolute;
            left: -webkit-calc(100% + 10px);
            top: 0;
            overflow: hidden;
        }

        .product-intro .itemInfo-wrap {
            margin-left: 10px;
            flex: 1;
            background-color: #6ff;
        }
    </style>
</head>

<body>
    <!-- magnifier -->
    <div class="product-intro">
        <!--relative-->
        <div class="preview-wrap">

            <div class="preview">
                <img src="../images/girlsmall1.jpg" alt="">
                <div class="shadow"></div>
            </div>

            <div class="preview-scale">
                <img src="../images/girlbig1.jpg" alt="">
            </div>

            <!-- <ul class="preview-list">
                <li><img src="" alt=""></li>
                <li><img src="" alt=""></li>
                <li><img src="" alt=""></li>
                <li><img src="" alt=""></li>
            </ul> -->
        </div>
        <div class="itemInfo-wrap"></div>
    </div>
</body>

</html>